Replacement Battery for Fanuc A98L-0031-0028 A02B-0323-K102 - 2-Pack

In this review the focus is on a practical replacement option for CNC systems that use the Fanuc A98L-0031-0028 and A02B-0323-K102 battery cartridges. The bottom line: this 2-pack delivers a direct, high-capacity replacement for machines that require a single 3.0V cell in cartridge format, making it a straightforward choice for maintenance technicians and shop managers who need reliable memory backup without modification. The review highlights compatibility, capacity, and deployment simplicity as the main reasons to consider these batteries.

Key Features

• Direct compatibility: Designed specifically for Fanuc A98L-0031-0028 and A02B-0323-K102 cartridge slots, so replacement is simple and avoids adapter work.
• High capacity: Each cell features a 1750mAh capacity to provide long service life for memory and backup functions in CNC controllers.
• Standard voltage: The 3.0V output matches the original specification to maintain stable logic and clock retention in Fanuc systems.
• Non-rechargeable chemistry: The lithium chemistry is non-rechargeable and suited for long shelf life and predictable discharge in backup roles.
• Two-pack convenience: Supplied as a pair so shops with multiple controllers or spare stock can replace more than one unit at a time.

Who It's For

This replacement battery is for technicians, maintenance engineers, and CNC shop owners who run Fanuc-controlled machines and need a like-for-like battery swap to preserve parameter memory and real-time clock functions. It is especially relevant where downtime must be minimized and proven component compatibility is required.

It is not for applications that require rechargeable cells or for devices outside the specified Fanuc cartridge family. Users who need multi-cell battery packs, custom voltage configurations, or rechargeable battery solutions should look for alternatives tailored to those needs.

Pros & Cons

Pros

• Direct drop-in fit for Fanuc A98L-0031-0028/A02B-0323-K102 cartridge slots, simplifying installation.
• 1750mAh capacity per cell offers longer backup time than lower-capacity options.
• Supplied as a 2-pack, which is useful for backups or multiple controllers.
• Non-rechargeable lithium chemistry ensures long shelf life and steady performance in backup roles.

Cons

• Non-rechargeable design means the cell must be replaced when depleted rather than recharged.
• Intended only for specific Fanuc cartridge models, so it is not a universal battery for other devices.

Specifications

Our Verdict

For anyone maintaining Fanuc CNC controllers that use the A98L-0031-0028 or A02B-0323-K102 cartridge, this 2-pack is a pragmatic and cost-effective replacement. It matches the original 3.0V specification and provides a high 1750mAh capacity, making it a sensible choice for shops that prioritize compatibility and minimal downtime.

Frequently Asked Questions

Will this battery fit my Fanuc controller?
It fits controllers that use the A98L-0031-0028 or A02B-0323-K102 cartridge format; verify your controller model before purchase.

Is this battery rechargeable?
No, this is a non-rechargeable lithium cell intended for backup and memory retention, not for recharging.

How many batteries are included?
The package includes two A98L-0031-0028 replacement batteries.